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' 4 Sheets-Sheet 1. J. SPIEL. Y GAS MOTOR.

No. 291.102. Patented Jan. 1, 1884.

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- J. SPIEL.

I GAS MOTOR. No. 291.102. Patented Jan. 1, 1884.

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(No Model.) J. SPIEL. GAS MOTOR.

I No. 291,102, Patented Jan. 1, 1884.

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UNITED STATES PATENT @FFICE.

J OHANNES SPIEL, OF BERLIN, GERMANY.

GAS-MOTO R.

SPECIFICATION forming part of Letters Patent No. 291,102, dated January 1, 1884.

. Application filed August 13, 1883.

. ner: 'Atmospheric air or pure oxygen mixed of motive power in my engine.

in certain proportions with a liquid or gaseous fuel, is sucked into a cylinder by means of a pistonas in ordinary gas-enginesor is forced in by a pump. This inflammable mixture is forced into and burned in a chamber situated in the continuation of the cylinder,

and containing hot water and steam. The expansion produced by the combustion of the gases and the evaporation of the water in consequence of such combustion are the sources The products of combustion are forced out by the backstroke of the piston and driven out of the combustion-chamber by the steam. Thereupon a fresh combustible mixture is sucked or pumped into the cylinder, ignited, and so forth.

In the accompanying drawings, Figure 1 is a longitudinal section, Fig. 2 a cross-section,

Fig. 3 a plan, and Fig. 4 a back view, of an engine embodying my invention, while Figs. 5 to 10 illustrate details of the igniting apparatus, and Fig. 11 a vertical engine constructed on the same principle.

The motor, Figs. 1 to 4, is made intermittent in such a manner that one revolution of the fly-wheel shaft corresponds alternately to two successive working-strokes and two empty strokes, which are produced in the following manner: When the piston is in its foremost position, as-shown in Fig. 1, the chamber A is filled with compressed combustible mixture, steam, and hot water, and the combustionchamber B with the inflammable mixture pumped in, besides steam and hot Water. The mixture in chamber A is ignited by an exterior flame, t, Fig. 4, which is conveyed to the combustion-chamber by means of an igniting slide-valve. In consequence of the combustion, part of the water is converted into steam, or the pressure of the steam already contained therein is increased, and in connection with the expanding gases drives the piston forward. By this means the combustible mix- (No model.)

ture in B is compressed, and as soon as the piston has passed the opening 0 the said mixture is ignited by the burning gases escaping from A through 0 to B. Thereupon the combustion, the vaporizing of the water, and the increase of pressure of the steam already formed in B forces the piston back again. By the return-stroke of the piston the products of combustion in A are driven out through the opening c, Fig. 2, by the piston and the steam. The next outstroke of the piston sucks the combustible mixture into A, causes the condensation of steam in B, and drives out the products of combustion in B through the outlet-valve 'U. The return of the piston causes the suction of combustible mixture into B and condensation of part of the steam, and at the same time in A the compression of the combustible mixture, ignition of the same, and

so forth.

The ignition of the combustible mixture in the combustion-chamber A is caused by an igniting mechanism. (Represented in Figs. 5 to 10.) This igniting mechanism consists, as in the usual valves of gas-engines, of a valve, Z, sliding between the valve-face k and the valve cover 19. In the valve there is a peculiarly constructed gas burner, 12, to which fuel is brought out of the chamber A during the time of compression through the canal g. In front of the burner there is the chamber 6, which serves to convey the flame from the exterior fire to the store in the cylinder. The chamber constructed in front of and around the burner is annularly widened at the base of the burner, and into this enlargement the canal q opens, so that the fuel going first backward touches the whole circumference of the burner and then enters the inside of the same, so as to be heated by the outer as well as by the inner surface of the hot burner, in order to facilitate its ignition. Then the intermediate chamber, 0, is filled with gas, and the valve during the period of compression is moved by a cam, d, keyed on the shaft w, Figs. 3and 4, as far as the opening 2 in the valve-cover, then the gases contained in the intermediate chamber are ignited by the external flame, and continue burning in the said chamber as the valve returns until the latter has reached the opening to in the cylinder-cover, when the flame ignites the charge. At the same mo-- ment, when the opening of the burner reaches the opening w, the opening .2 of the valvecover is closed, and, vice versa, when the intermediate chamber is open at .2 it is shut toward to, so that there is never any connection between 2 and un The canal q serves to support the igniting-flame. It widens as soon as the outer opening is closed, in order to accelerate the equality of tension between the flame and the charge.

If liquid fuel is to be used to drive the 1110- tor, the vessel 0 and the suction-valves a and a are provided. The amount of petroleum which passes through the tubes 1' and '0 can be regulated by hand by means of the cocks h and 71 and also by a governor, It. In using gas and air, the gas is led into the suctionvalves from the side.

For setting the machine in motion the steam necessary is raised by exterior heating. This exterior heating may be allowed to last dur ing the time the machine is in motion.

Figs. 1 and 2 show a fire-box, F, constructed for the exterior heating of the water-receptaele of the machine. The heated gases give up their heat in the fines C C to the surrounding water, and are carried away by the discharge -pipe S, which connects the flues O and G.

The machine hereinbefore described can be adapted for two cylinders placed side by side, with ram-pistons. In this case the burning gases may strike over from one combustion chamber to the other, or from one cylinder to the other, so that only one igniting apparatus is required for the machine.

On Sheet 4 of the accompanying drawings, Fig. 11 represents a vertical section of a vertical engine. In this modification a chamber, A, situated at the base of the machine, is formed by a jacket, M, of the cylinder, and a plate, 1, below. It communicates with the open lower end of the cylinder. The space R, between the jacket and the cylinder, is divided by a partition, D D. The cylinder and the space adjoining it are so far filled with water that the surface of the latter just touches the lower surface of the piston when the piston is in its lowest position, as shown in the drawings.

The inlet-valve a, for the combustible mixture, and the outlet-valve 0, which are both set in motion by the shaft to, communicate with the cylinder by the canal 12. \Vhen, by the stroke of the piston, the combustible mixture is sucked in, it only mingles with the steam generated from the heated water, because no products of combustion remain behind the piston, owing to the height of the water-level. By the compression of the explosive charge during the back-stroke of the piston, the column of water in the open cylinder is pressed downward and that in the space R pressed upward. After the explosion and the effects of the same, the water in the cylinder and that in the annular space between the cylinder and the jacket will assume the same level and will be maintained at this uniform level by a suitable supply.

W hat I claim is I. In gas and petroleum engines, the combination of the power-cylinder with a water and steam chamber constantly communicating with the interior of the cylinder, and a separate lire-place and flue adapted to heat and evaporate the water in the said chamber from outside.

2. In gas-engines, the combination of the power-cylinder with a water-receptacle constantly communicating with the interior of the cylinder, and provided with an inlet for combustible gas mixture, as well as with an igniting mechanism, and a separate fire-place and flue adapted to heat and evaporate the water in the said chamber from the outside.

An igniting apparatus for gas-engines, comprising in its construction a hollow burner, I), situated in an intermediate chamber, 0, having near the base of the burner an enlargement, to which the combustible mixture serving to feed the igniting flame is admitted through a channel, q, for the purpose of heating the said mixture by its successive contact with the outer and inner surface of the burner before it is ignited, substantially as described.

4. In a gas-engine, the combination of a water-receptacle, communicating with the cylinder,with a fire-place, F, and fines C 0, leading the products of combustion from the latter through the water-receptacle, substantially as described.

I11 testimony whereof I have signed this specification in the presence of two subscribing witnesses.

.IOIIANNES SIIEL.

Vitnesses:

FERDINAND HELLMANY, HUGO J onnax. 

